Formaldehyde → 4-(2-Bromo-2,2-difluoro-ethyl)-1-hydroxymethyl-pyrrolidin-2-one
Reaktionsgleichung
[Br:1][C:2]([F:11])([F:10])[CH2:3][CH:4]1[CH2:8][NH:7][C:6](=[O:9])[CH2:5]1.[CH2:12]=[O:13]>C[Si](Cl)(C)C>[Br:1][C:2]([F:10])([F:11])[CH2:3][CH:4]1[CH2:8][N:7]([CH2:12][OH:13])[C:6](=[O:9])[CH2:5]1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
In a 50 ml three necked flask fitted with a magnetic stirrer, under inert atmosphere, a solution of 4-(2-bromo-2,2-difluoro-ethyl)-pyrrolidin-2-one a6 (0.46 g, 2 mmol), paraformaldehyde (0.12 g) and TMSCl (10 ml) is heated at 60° C. for 1 h. The reaction mixture is evaporated to give the crude 4-(2-bromo-2,2-difluoro-ethyl)-1-hydroxymethyl-pyrrolidin-2-one a7 (0.48 g, 92%).
Aufarbeitung
- customThe reaction mixture is evaporated
Quellen und Nachweise
- ORD-Eintrag
- ord-5dd6a68815664df9be35bc92fc49b330
- Quelldatensatz
- uspto-grants-2010_07
- Patentnummer
- US07763644B2
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